m 



CRUCIFER^. (MUSTARD FAMILT.) 77 



Var. Mesopotamica, Boiss. Pods .02 to .03 long — Beirut. 



Var. Orieiitalis, Boiss. Pods retrorsely hispid — Common. 



* * Pods with long, ensiform, flattened leak. 



3. S. alba, L. © White Mustard. 

 Ehardal abiadh. 1 and higher, hispid. ^ ^^- ^'^* 



Leaves puberulent, pinnatisect, with 

 unequally dentate-lobed segments. 

 Pods .03 long, .004 broad, torulose, 

 generally hirsute ; beak seed-bearing 

 at base, decurrent — Spring — Waste 

 places ; everywhere. Pod of Sinapia alba, 



21. DIPL.OTAXIS, DC. 



Calyx spreading, equal at base. Petals clawed. Pods linear, 

 flattened; valves 1-nerved. Seeds in 3 rows — Erect, branching 

 herbs, with yellow, pink, or white flowers, and aspect of Brassica. 



* Flowers yellow, 



1. D. tenntfolia, L. if .6, glabrous. Leaves oblong-lanceo- 

 late, sinuate-dentate, or pinnately cut or parted, with linear lobes ; 

 rarely entire. Pedicels twice as loiig as jiowers. Pods erect on ascending 

 -pedicels, .04 long, .003 broad ; style .003 long — June to November 

 — Walls and roadsides. 



Var. integ^rifolia, Boiss. Nearly all the leaves entire — Castle 

 of Antioch. 



2. D, Timinea, L. Jureijir. .3, sparingly^apillose-hairy ; 

 stems simple, or branched at base. Root-leaves sinuate-lyrate, with 

 short, obtuse lobes ; stem-leaves few, oblong, or linear, dentate. 

 Fedicels shorter than flowers. Fods ascending, .02 to .03 long, .0018 

 broad ; style .003 long — November to May — Roadsides ; common. 



Var. integrifolia, Boiss. Leaves entire, or scarcely crenate — 

 Coast, Jerusalem, and probably elsewhere. 



Var. foliosa, Post Stems leafy. Leaves oblong-lanceolate, 

 irregularly dentate — Plain of Sharon. 



3. D. Harra, Forsk. 2f Earra, .2 to .4, hispid, rarely glabres- 

 cent ; stems multiple, branching, often woody at base. Leaves 

 obovate-oblong, coarsely-toothed. Fedicels longer than flower, slender, 

 often deflexed. Pods stipitate, .04 long, .002 broad, with Iroad, subsessile, 

 Uloled stigma — February to May — Sterile places ; Damascus to 

 Ghor-es-Safieh, Et-Tih, and southward, and eastward. 



Var. glabra, Post. Glabrous. Leaves oblong, sparingly toothed 

 — Damascus, Antilebanon. 



12 



